What percentage of the placenta is of fetal vs. maternal origin?
A. 20% vs. 80%
B. 33% vs. 66%
C. 50% vs. 50%
D. 75% vs. 25%
E. 80% vs. 20%
Answer: E. 80% vs. 20%
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A(n) ____________________ organism is one that carries a gene that has been transferred to it from another species
Fill in the blank(s) with correct word
What is the total number of possible outcomes that two gametes, both of which are heterozygous for both of their alleles, can produce?
a. 4 outcomes b. 12 outcomes c. 14 outcomes d. 16 outcomes e. 32 outcomes
A solid waste (garbage) transfer facility that sorts and breaks down garbage into recyclables and waste to be thrown away in the landfill would be a suitable analogy for which cellular organelle?
a. smooth ER b. rough ER c. lysosome d. nucleus
Archegonia _____
A) are the sites where male gametes are produced B) may contain sporophyte embryos C) have the same function as sporangia D) make asexual reproductive structures